Hi, I have connected 4x4 matrix keypad to BBB. I am trying to configure it in Device Tree, I spent a couple of hours but no effects. Snippet of my kernel config:
# Input Device Drivers # CONFIG_INPUT_KEYBOARD=y # CONFIG_KEYBOARD_ADP5588 is not set # CONFIG_KEYBOARD_ADP5589 is not set CONFIG_KEYBOARD_ATKBD=y # CONFIG_KEYBOARD_QT1070 is not set # CONFIG_KEYBOARD_QT2160 is not set # CONFIG_KEYBOARD_LKKBD is not set CONFIG_KEYBOARD_GPIO=y # CONFIG_KEYBOARD_TCA6416 is not set # CONFIG_KEYBOARD_TCA8418 is not set CONFIG_KEYBOARD_MATRIX=y I have based on snippets from am335x_evm.dts content to create my .dts file. File content: /* * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com/ * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ /dts-v1/; /plugin/; / { compatible = "ti,beaglebone", "ti,beaglebone-black"; /* identification */ part-number = "RT-IMW1-KEYPAD"; version = "00A1"; fragment@0 { target = <&ocp>; __overlay__ { matrix_keypad: matrix_keypad@0 { compatible = "gpio-matrix-keypad"; debounce-delay-ms = <5>; col-scan-delay-us = <2>; row-gpios = <&gpio1 20 0x01 &gpio1 7 0x01 &gpio1 22 0x01 &gpio1 27 0x01>; col-gpios = <&gpio4 14 0x01 &gpio2 29 0x01 &gpio4 15 0x01 &gpio4 16 0x01>; linux,keymap = < 0x0000001e 0x00010030 0x0002002e 0x00030020 0x01000012 0x01010021 0x01020022 0x01030023 0x0200000b 0x02010002 0x02020003 0x02030004 0x03000005 0x03010006 0x03020007 0x0303001c >; }; }; }; fragment@1 { target = <&am33xx_pinmux>; __overlay__ { pinctrl-names = "default"; pinctrl-0 = <&matrix_keypad_s0>; matrix_keypad_s0: matrix_keypad_s0 { pinctrl-single,pins = < /*INPUTS*/ 0x1b4 0x07 0x164 0x07 0x020 0x07 0x02c 0x07 /*Outputs*/ 0x190 0x07 0x07c 0x07 0x194 0x07 0x198 0x07 >; }; }; }; }; I have compiled and loaded successfully .dtbo files to cape manager (UART, CAN, LCD) and everything works fine but I still can't launch matrix keypad. Could you tell me what I am doing wrong? -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
